Tire-building buck



H. F. BARTLETT. TIRE BUILDINGBUCK.

APPLICATION FILEQ,APR.26, i919.

Patented Mar. 9, 1920.

2 SHEETS-SHEET I.

attain H. F. BARTLETT.

TIRE BUILDING BUCK.

APPLICATION FILED APR, 26. "[9,

Q Q G Q m N mm 4 man mm M N 0 mm a ll a 1% b \O W. x m R N a W nk m M I a E AN I Q a. m\ x a 1 Q x.

V HARRY r. BARTL TT, or'nusxnsom vncrirean; f. n

To all'whom it may concern: l

- Be it known that I, HARRY F. BARTLETT;

citizen of the United States, residing at Muskegon, in thecounty of Muskegon and State of Michigan, have invented certain new and useful Improvements in Tire-Building Bucks-, of which the following is a specificationfreference being had to the accom-' panying drawings. r

a This invention relates tocertain impr.ove-

ments in tire building bucks, andhas rela-' tion-Inore particularly to a device of this general vcharacter especially designed and adapted for use in connection with tire building machines, and itis an object of the invention to provide a novel and im-I proved device of this general character adaptedto travel along a mono-rail in order .that the vvarious'operations incident'to the bulldlng of a tire may be obtained with a- 7 material saving of time, labor and expense.

Another object of the invention is to pro-Q 'vide an: arrangement of parts wherein the mono-rail is directed in a manner: common to the various machines and operationsincide'nt to the building of a tire and, upon which travels a plurality of bucks of a novel and improved typeeach provided'with a 'core supporting means so that the core and tire beingformed thereon may beposit onecl and adjustedin'accordance with the v occasions,ofpractice.v r a spindle.

I An additional object of the invention is 5 to providea novel and improved buck which 36 includes a head adapted to travel along amono-rail and which head has engaged therewith a spind le adapted for rotary movement about the substantially horizontal axis and wherein said spindle has coac'ting therewith a core supportlng means adapted for rotation about an] axis substantially at right angles tothe'axis of rotat1on ofthe Another object vof the 'invention'is toprovi'de a novel, and improved buck includg inga head adapted to travel along a monorail and which head is providedwith mfeans cngageable with the-rail to-oflset or compensate for the strain of the load imposed upon the buck spindle or arm coacting with the headg l a I 'i Furthermore, it is an object of the inventipn to provide a n vel an 'p f bu TIRE-BUILDING BUCK":

speciflcation of Letters liatent i I Application fi1ed A pri1-26, 1919. Serial No. 292,835.

Patented arie; i920;

adapted to travel along a mono-rail and which carries means coactingi with: the rail for holding the buck. againstanove nent [when indesired' positions along the rall.

J The invention" consists in the details of construction andin the combination and arrangement oftheseveral parts of my improved buck'whereby certain important ad:

dered simpler less 'expensivei and otherwise more convenient "and advantageous for use,

v as will behereinafter more fully set forth; [The novel featuresofmy invention will hereinafter bedefinitely claimed;

vantages are attained; andthe device :ren-j I In orderthat my invention maybe the i better: understood, I will now proceed to 'de panying drawings, wherein F gure 1 isa view,fpartly t1on and partly insection, illustrating a scribelthe same withreference to the acco'in;

buck constructed in accordance with an" em-' my invention and in applied.

bodinient of position; a a 1 y F1g.- 2 is a viewinl top plan of a'buck constructed in accordance withan'embodi ment of my invention, the coating monora1l withwhich the buck coacts being shown infragmnt- 11F ig; 3 is a diagrammatic viewin top' pla'n with the head'as' herein disclosed, V V

a Asdlsclosed in the accompanyingtdraw-1v ing's, R denotes a mono-rail; preferably :end-.

in side eleva less, andwhich isadaptedto be, support ed' at agpredeterniineddistance above the flooror other foundation. 'The'rail Rf'is' preferably I mounted upon a plurality of pedestals, one of said pedestals P being,

disclosed; in Fig. 1 'of the "accompanying drawings.- The upper portion of the rail R is provided; with the oppositely- ;direc'ted flangesllov fora purpose to be hereinafter more particularly described;

I :My improved buck includes a head" I which,.when in applied position upon the rail-R, isarranged at right angles to the:

said rail.. The headH; at :opposite sides of the rail, is provided-withzthe depending J 7 arms 2 and 3,-each of saidtarms; 2 and 3 having its-lower or free end portionflina wardly directed to underlie the flanges. l. 1

The under fare ofthe.head-.H between the arms2 and 3 andthefacesofthe lovver or free end portions of said arms underlying the flanges 1 are provided With' the transverselydisposedchannels 4 and in eaching B. i v The boxings B are interchangeable and each comprises an elongated bodyportion" 5 substantially" U-shaped in cross section and which has arranged centrally thereof ablock 6 heldthereiu in any desired manner and which block serves as a reinforcement for theabox. The opposite endsof'the boxB r are: provided With-the chambers wandeach -of which is intersectedi; a shaft-7 carry? ing aroller 8' for contact with aifiange l.

- The sidemembers of'each of the boxes B aremlefihed by: the? outstanding lips 9 overlymg the portions of the head 'or' arms a u cent the. groove 4 Whichwsaid' box is'ar ranged, and suitable fastening membersas lIlCllCEltQd? at 10 111 Fig:- I, arej dispolsed through each of sad lips 9 "to maintainythe boxsin. applied' position" Within its'groovei Each of these fastening members 10 is read- 11y removable so thatthe-boxes 'Bzniavbe conveniently: interchanged or replaced as' required; i

Each ofithe arms and 3 hasremovablv secured thereto a plate l1 which cont-acts' and serves 1 as a reinforcement" for each pair of, boxmgs-B arranged at either side oft the. rail The upper-rollers 8 engage the tops-ur faces; of the flanges 1 and the loiveiirollers Q8 engage the under surfaces of"'sai d flanges andserve to supportthe load; While the rollers -8; oftthe :arms'2*and '3 serve to grip the railiand'effectivelj maintain the headin desired position thereupon; It Will also jbe obvlous ithati thesej 'ro'llers 8 serve as antifriction means to' facilitate the travel of the'head I-Ialong thevrailR1 I l The head H has disposed" longitudinally therethrough abored? inwvhich is snugly;

engaged ftlSPlIlCll 14 arranged at one end of an arm) A and extendingdongitudinally of said arm. Thespindl'el l, at 'its-ejunetion" with the al'm- 'A --isfprovided"With an out standing annular fiange; 15 which substan tiztlly ahuts amend o f theheadH when the SIJHICllB'lt-IS n apphed position andthe-free end portion 0f"the" spindle 14 'is provided' With a reduced extension 16 to which V j clamped,- through the-medium ofthe s'c'rew 17- or the like, a holding collar or'knuekl'e 18':

It will be self'evident that upon? releasing the collar or kn-uekle 18; the arm may be readily removed front the head H; r

"Pivota-lly engagedt s at 19'; r with upp'enportion of ithe had H; is a dog 20 coacting with the notches 2 1 pro ur e i h uponvthe member I w One side -of the' liead"H ehas secured" periphery of the flange 15 for holding the spindle 14:,- and the arm.- A against rotation and for, holding said arm in its different rotary.adjustments.

The arm A is preferably substantially arcuate inform and is provided at its outer v for free extremity With a bearing 22 in which isvengaged a stub shaft 23 perpendicularly related to the axis of the spindle l4. Erigagedwiththe shaft 23, above the' bearing 22, is a core-supporting member M The arm 2 is at the side of; the rail'R from \vhiehthe arm A projects andsaid arm 2 terminates be'lovs the arm 3 and 'coactswith the Webofthe rail R sothatsaid 'arma 2.

serves'efi'ectually,as a brace to ftake-the strain of'the load; imposed, on the ar1nA and particularly When, the Workis mounted thereto a casing 26in which"is arrailged a V vertically "movable bolt 27 adapted to. seat within the poclrets or recesses 28* formed in the upper surface of the railalt't'o" hold the" head H in its-"various Work-ingp'ositions i along the rail R. It is preferred that the" bolt 27 move by 5 gl avityftow'ard the 1 rail 1 R? In order'to elevate the boltto release the head I Lan outstandinggpin 29 'is provided" and which is directed through the 'T-slot '30} V -The head of the slot isat the upper end thereof so that Whenthe bOltQTiS eleVa'ted;

a partial rotation thereofin eitherdirection Will position the "pin 29 Within-theheadof? the slot'30 and thus hold the bolt'27 against 7 dropping." a I a ,7

" As'vvill hereinaften -be e-Xplained'; it-i, is:

intended that a plurality-'ofi-heads Plywith: P

their concomitant parts; travel upon the rail It and for. thisa'eason the-v side portion-of eachheath opposite to the i casing2'6' be providedRWith' a buffer 'oribumper 31 which 013-- eratese to absorb 1 the shock: incident; to said head 1H accidentally coming into r contact With-itsecond orfadjacenthead.

' The lovver'portion the arm 2,- in its:faee1 opposed; to :the ,Web of the rail R; isz-also; provide'dwvith a transversely disposed groove a in which snugly engages a boxing Bf prefz erably of the type-hereinbefore? described relative jtoftll boxing; B and interchangeable; therewithsw The aanti-frietion l means 8;? car; ried by: saidxboxingg B? d rectly; engages: the;

Web of'the rail for a purpose whiohiis be alievedi toibe self-evident ,1 As is; parti(zularl-y iHustratQdQinZ 3 the mon -rail is contlnuous and comprises two Stretches X and Y; in close proximity one to the other and preferably'spaced apart a distance only sufiicient to permit the unobstructed passage of the 1 bucks. 'The stretch Y extends adjacent to machines diagrammaticallyindicated at Z which are of the well'known type of wrapping machines, s'o'that the cores and tires initiallyformed thereon may be placed on the-members M of thebucks.

I Wish to state at thistimethat in prac tice I findit of particular advantage to employ a plurality of bucks, although I have only illustratedand described one of my improved bucks, as it is thought that this is sufficient for the purposes of disclosure.

Afterthe core and tire have been applied to a member M of a. buck, this buck is caused to travel throughthe stretch X of the rail R and which stretch is preferably provided with four stations I), c, d and 'e, and at each of which stations a pocket or Y recess 28 is provided so that a buck may be held stationary at such station while being operated upon by theworkman. At the station 7), the bead strips are applied to the tire; at the station 0, the side walls are applied; at the station 0?, the cover or cushion and breaker strips are applied, and at the station e, the tread strips are applied or any other operation necessary to complete the tire.

By this arrangement, it will be perceived that any of the various operations can be effected by a workrr an skilled and specialized in this particular operation, so that a greater number of tires can be produced than in connection with the stationary type of buck now employed and wherein a single workman is required to make all four of these operations. It is also to be stated that with the provision of these several stations, a material saving in stock is effected and permits each workman an opportunity to inspect the work of a previous operation.

With the use of my improved traveling buck, a material saving is efiected in waste motion of the operator.

I also find it of advantage to provide a further station 7 where an inspector is located to examine the tire when completed ready for the vulcanizers and who also can remove the core and its tire and continue the buck to the stretch Y to receive another core and tire from one of the machines Z.

It will also be obvious that with a system embodying a mono-railand bucks constructed in accordance with my invention,

a centralizing of the operations is effected, together with a material reduction in floor space and handling of stock, and also readily permits a convenient assortment of tires according to sizes and otherwise tends toward a maximum of efficiency.

From the foregoing description, it is thought to be obviousthat a Badman,

structed in accordance with my invention is particularly well adapted for 'use'b'y reason of the convenience and facility with which it may be assembled and operated, and it will also be 'obvious that niy invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I donot wish to be understood as limiting myself to the several parts herein shown in carrying the precise arrangement andformation of out my invention in practice except ashere-' inafter claimed.

I claim:

1. In combination with a mono-rail, a.

tire carrying buck adapted to travel thereon and including ahead engaging the rail at oppositeside portions.

2. In combination with a mono-rail, a tire carrying buck adapted to travel thereon and including a head engaging the rail at opposite side portions, said head being provided with means coacting'withthe rail for bracing the head against the strain of the load imposed thereupon.

3. In combination'with a mono-rail, a

tire carrying buck adapted to travel there-- on and including a head engaging the rail at opposite side portions, andmeans carried by the head and coacting with the rail for locking the head against movement along the rail.

4. In combination with a mono-rail, a tire carrying buck adapted to travel thereon and including a head engaging the rail at opposite side portions, and a bumper carried by the head.

5. In combination witha mono-rail, a

- buck including a head mounted upon the rail to travel therealong, an arm supported by the head for rotation about an axis angular to the rail, and coacting means carried by the head and the arm for locking the arm against rotation.

6. In combination with a mono-rail, a I buck including a head mounted upon the' rail to travel therealong, an arm supported by the head for rotation about an axis angular to the rail, coacting means carried by the Testingaon said :rail. adapted to travel therealong; and arms depending from the head and coaeting with the under surfaces of the flanges, one ofsaid arms engaging the webof therai'lb,

9: In combination with a 1nono-rail provided with oppositely directed flanges, a

buck including-a head extending across the rail, anti-friction means carried by the head a'ndengaging the rail arms depending from the buck at oppos te sldes ofthe rail and extending inwardly ofthe flanges," fill'Clfllli-lgaging the inner surfaces of the flanges.

10. In combination with a mono-rail provided with oppositely directed flanges, a buck including a head extending acrossthe rail, anti-friction means' carried by the head and engaging the rail, arms depending from the buck at-opposite sides of the rail and extending inwardly of the flanges, antifriction means carried by said arms and engaging the inner surfaces of the flanges; and

anti-friction means carriedby one of said arms and engageable with the web of the rail. Y

11. In combination with a trackw-ay, a

tire carrying buck adapted to travel; thereon and including a head; engaging theop posite slde portions of. said trackway, said head being provided with means coacting with-the trackway -for 'braeing the head against the strain of the load imposed thereon. I 1

12.-In combination with a traekway in eluding oppositely: directed flanges, a buck including ahead resting on said trackway and adapted to travel therealong, and arms 1 

